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Hide internal __nis_hash function [BZ #18822] 

Hide internal __nis_hash function to allow direct access within libc.so
and libc.a without using GOT nor PLT.

	[BZ #18822]
	* nscd/nscd_helper.c (__nis_hash): New prototype.
This commit is contained in:
H.J. Lu 2017-10-01 17:49:47 -07:00
parent 87078544f2
commit 36e7ae1e9d
2 changed files with 10 additions and 0 deletions
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ChangeLog
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@ -1,3 +1,8 @@
2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822]
* nscd/nscd_helper.c (__nis_hash): New prototype.
2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822]

5
nscd/nscd_helper.c
View File

@ -443,6 +443,11 @@ __nscd_get_map_ref (request_type type, const char *name,
#define MINIMUM_HASHENTRY_SIZE \
(offsetof (struct hashentry, dellist) + sizeof (int32_t))
/* __nis_hash is defined in nis_hash.c which is included both libnsl
and libc. Since the one in libnsl is exported and the one in libc
is hidden, __nis_hash is marked as hidden where it is referenced,
not where it is defined. */
extern __typeof (__nis_hash) __nis_hash attribute_hidden;
/* Don't return const struct datahead *, as eventhough the record
is normally constant, it can change arbitrarily during nscd